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Hydraulic Block for a Hydraulic Power Unit of a Hydraulic Vehicle Brake System

a technology of hydraulic power unit and hydraulic brake system, which is applied in the direction of braking system, machines/engines, engines without rotary main shafts, etc., can solve problems such as insufficient supply, and achieve the effect of eliminating the installation space of vacuum brake boosters

Active Publication Date: 2015-10-22
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a hydraulic block for a vehicle brake system that has space-saving accommodation for both a brake master cylinder and a pedal travel simulator. This eliminates the need for a separate brake booster. The use of hydraulic braboosting or self-energizing wheel brakes is preferred over a vacuum booster. The system also includes receptacles for solenoid valves and pressure sensors, as well as an oblique bore for connecting the receptacles. The hydraulic block has a flat side with a cylinder bore for a piston pump and can accommodate a larger piston diameter and coaxial mounting of an electric motor for driving the piston pump. The system also includes a brake pressure buildup valve, a brake pressure reduction valve, and further valves in different rows on the hydraulic block for solenoid valves and pressure sensors. Overall, the invention provides a compact and space-saving solution for braking and control in hydraulic vehicle brake systems.

Problems solved by technology

Although a brake booster, in particular a conventional vacuum brake booster, is possible in principle, it is not provided.

Method used

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  • Hydraulic Block for a Hydraulic Power Unit of a Hydraulic Vehicle Brake System
  • Hydraulic Block for a Hydraulic Power Unit of a Hydraulic Vehicle Brake System
  • Hydraulic Block for a Hydraulic Power Unit of a Hydraulic Vehicle Brake System

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Embodiment Construction

[0020]Hydraulic components of a hydraulic power unit of a slip control system in a vehicle brake system are accommodated in a hydraulic block 1, which is shown in FIGS. 2 and 3. A hydraulic circuit diagram of the vehicle brake system is depicted in FIG. 1. The vehicle brake system has a muscle-powered tandem or dual circuit brake master cylinder 7, to which two brake circuits I, II are connected. Each brake circuit I, II has two wheel brakes 24, which are each connected to the respective brake circuit I, II by a brake pressure buildup valve 12 and a brake pressure reduction valve 13. The brake pressure buildup valves 12 and brake pressure reduction valves 13 can also be understood as wheel brake pressure modulation valve arrangements, by means of which wheel brake pressures in the wheel brakes 24 and hence braking forces on the vehicle wheels can be regulated in a wheel-specific manner. Such control systems are known and will not be explained further here.

[0021]In each brake circuit...

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PUM

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Abstract

A hydraulic block for a hydraulic power unit of a hydraulic vehicle brake system includes a main brake cylinder bore and an intake that are integrated to form a pedal travel simulator.

Description

PRIOR ART[0001]The invention relates to a hydraulic block for a hydraulic power unit of a slip-controlled hydraulic vehicle brake system having the features of the pre-characterizing clause of claim 1.Prior Art[0002]Hydraulic blocks are known. These are typically low-profile cuboidal metal blocks for the installation of hydraulic components, such as hydraulic pumps, solenoid valves, hydraulic accumulators and damper chambers of a slip-controlled vehicle brake system. The hydraulic blocks hold the hydraulic components mechanically and connect them hydraulically, typically by means of bored connecting lines. A hydraulic block fitted with the hydraulic components forms a hydraulic power unit and is the heart of the slip control system. Low profile is intended to mean that hydraulic blocks often have a thickness which is approximately one quarter to one third and seldom more than half the length and width. In plan view, the hydraulic blocks are rectangular and are often almost square. N...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B60T17/04
CPCB60T17/043B60T8/368B60T8/4081
Inventor MAYR, MATTHIASWEH, ANDREAS
Owner ROBERT BOSCH GMBH
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